Desktop Survival Guide
by Graham Williams


Fuzzy Expert System: Uses Fuzzy Logic instead of Boolean Logic for reasoning in an Expert Systems.

Fuzzy Logic: Introduced by Dr. Lotfi Zadeh of UCB around 1960. A superset of conventional Boolean logic that allows truth values in the interval $[0,1]$, instead of just the set $\{0,
1\}$ with a rigorous set of mathematical operations that define how the logic system works. The most common definitions for the basic operations are:

truth(x AND y) = min (truth(x), truth(y));
truth(x OR y) = max (truth(x), truth(y));
truth(NOT x) = 1 - truth(x),

where x and y are truth values (degree of belief, degree of membership).

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